SKU: 3406536529
cybex sirona isofix

cybex sirona isofix CYBEX Sirona Gi i-Size 360° Rotating Car Seat

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Description

cybex sirona isofix CYBEX Sirona Gi i-Size 360° Rotating Car SeatCybex Sirona Gi i Size 360 Rotating Car Seat Ultimate comfort and safety, for their first four years. The rear facing Cybex Sirona Gi i Size has 360 rotation for easy boarding. All round air ventilation for cooler rides. Extended rear facing for safer travel up 20kg. The latest car seat in our successful Cybex Sirona line is the most comfortable yet: the Cybex Sirona Gi i Size. This car seat also features integrated Linear Side impact Protection for

Cybex Sirona Gi i-Size 360° Rotating Car Seat

Ultimate comfort and safety, for their first four years. The rear-facing Cybex Sirona Gi i-Size has 360° rotation for easy boarding. All-round air ventilation for cooler rides. Extended rear-facing for safer travel up 20kg.

The latest car seat in our successful Cybex Sirona line is the most comfortable yet: the Cybex Sirona Gi i-Size. This car seat also features integrated Linear Side-impact Protection for defence from all directions.

A range of innovative features also upgrades your child's comfort, including 360° rotation in any recline position with the easy rotation handle, for smooth on and off-boarding. Innovative all-around air ventilation means the ride stays cool, and you have the option of choosing mesh fabrics for maximum breathability with the Plus fabric version.

Five recline positions are available in either direction - tailored comfort for your child, whether they're a tiny newborn or a fully-grown four-year-old (newborn inlay accessory sold separately). 360° of comfort and safety for their first four years: the Cybex Sirona Gi i-Size.

What are the features of the Cybex sirona Gi i-Size ?

UP TO 50% HIGHER SAFETY LEVELS*

Rear-facing is one of the safest ways to travel. In the critical first moments of a front impact, the child's body is pushed against the padded car seat shell, minimising movement and reducing the force acting on the child's neck. Mandatory up to 15 months (76 cm), we recommend keeping your child rear-facing for as long as possible. The Cybex Sirona Gi i-Size is designed for comfortable rear-facing travel until your child weighs 20 kg. (*compared to the same seat forward-facing in a frontal crash. Result of internal testing using 2,022 ADAC frontal crash test criteria.)

QUICK AND EASY ONBOARDING

A stress-free start to your journey. Just swivel the car seat to face the car door and get your child onboard. You avoid back strain, while your child stays comfortable in any recline position.

OPTIMAL BREATHABILITY

Comfort in any season. All-round air ventilation lets air flow through channels in the car seat, carrying away heat and helping avoid a sweaty ride for your little one. The Plus version also includes mesh fabric that increases breathability up to six times compared to regular fabrics.

GROWS WITH YOUR CHILD UP TO 4 YEARS OLD

As your baby grows, adjust the Cybex Sirona Gi i-Size headrest for a comfortable fit at every stage. 12 positions allow a tailored fit to your child, with the harness lengthening automatically with each adjustment - and only one hand is required.

SIDE-PROTECTION

Integrated Linear Side-impact Protection defends your child against the force of a side impact. Working together with the energy-absorbing shell, the L.S.P System significantly reduces the effect of impact forces on the child.

ALWAYS IN A COMFORTABLE POSITION

Find the ideal recline setting, whether your little one is a new born or a growing child. Five positions are available in both riding directions – and in the boarding position, too. And when your child falls asleep, you can recline the seat with one hand, letting them dream that little bit longer.

STRAIGHTFORWARD INSTALLATION

It only takes moments to set up your Cybex Sirona Gi i-Size. Use an ergonomical handle to click the ISOFIX into the vehicle seat and extend the load leg. Both provide stability and extra safety. Visual indicators help you confirm the seat is ready to protect.

TECH SPECS

Regulation: UN R129/03
Child Age: approx. 3 months up to 4 years (From birth with new born inlay)
Child Height: 61 - 105 cm (From 40 cm with new born inlay)
Child Weight: Max. 20 kg

PRODUCT DIMENTIONS: L 710 mm / W 440 mm / H 750 mm
PRODUCT WEIGHT:13kg

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3406536529

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4.7 ★★★★★
Based on 11 reviews
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Product Reviews
S
Sal
Lexington, US
★★★★★ 5
Good for sitting on it daily. Not that soft as expected
Color: Dark, Color: Dark
I’ve been using this chair for a few days now and overall it’s pretty solid for a home office setup, especially for the price range. Assembly took me about 30–40 minutes alone and all the parts were labeled clearly. Nothing arrived damaged and the instructions were easy to follow, though attaching the backrest was a little awkward with one person. Once assembled, the chair looks clean and professional. The PU leather feels smooth and the cushioning is definitely thicker than cheaper office chairs I’ve tried. It’s comfortable for working several hours at a time, although I wouldn’t describe it as super plush or “sink-in” soft. The seat has a firmer feel, which may actually be better for posture during long work sessions. The ergonomic support is decent. The backrest follows the shape of your back fairly well and gives noticeable lumbar support compared to flat office chairs. I spend a lot of time at my desk and this chair helped reduce some lower back discomfort. The reclining and rocking feature is also nice for quick breaks between meetings or while watching videos. It doesn’t recline extremely far, but enough to relax a bit without feeling unstable. One feature I ended up liking more than expected was the flip-up armrests. They make it easy to slide the chair completely under the desk and also give more room if you like sitting cross-legged occasionally. The chair rolls smoothly and feels stable even when leaning back. A couple downsides though. The faux leather can get warm after extended sitting, especially in a warmer room. The mesh section helps airflow a little, but not enough to fully prevent heat buildup. Also, while the chair is comfortable, it doesn’t quite feel “premium executive” level in terms of materials. Some of the plastic components and armrests feel more mid-range than luxury. Overall, I’d say it’s a good value office chair with solid comfort, decent back support, and practical features. Great for everyday work or study use, just keep expectations realistic if you’re looking for a super high-end executive chair feel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
R
Rose Petal
Port Orchard, US
★★★★★ 5
Comfortable chair constructed with good quality materials
Color: Dark, Color: Dark
Having purchased several chairs from Amazon over the years, I would rank the Marsail Executive Office Chair Ergonomic Desk Chair as one of the better quality options I've received. Here is a breakdown of my experience: Build Quality & Aesthetics I was immediately impressed by the quality of the base. It is crafted from brushed metal and has a substantial, premium feel that sets it apart from cheaper plastic alternatives. Additionally, the pneumatic height adjuster was easy to install and operates very smoothly. Comfort & Ergonomics -- Padding: The padding is not quite as thick as I expected, but it has proven to be very comfortable to sit in so far. Sometimes I am in the chair as much as 10 hours per day, and the foam in the seat holds it's form all day. -- Support: The chair does not include built-in lumbar support, so I am using a lumbar pillow. However, I actually find this preferable; it allows me to adjust the pillow to my exact needs or remove it entirely depending on how I'm feeling. -- Head support and tilt: I like to work in an upright position, but I sometimes i like to lean back for a rest. The chair leans back just enough to allow me to rest my head, but not so much that I feel like it will tip over. The head support is subtle too - it doesn't hurt my neck or force me to rest in an awkward position. Functionality -- The mobility of this chair is excellent. The wheels are high-quality and roll very smoothly on my hardwood floors, which is often a pain point with other office furniture. Final Verdict Despite the thinner padding and lack of integrated lumbar support, the superior materials and smooth mechanics make this a decent value for the money. It’s a sturdy, well-made piece of furniture.
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Reviewed in the United States on April 12, 2026
B
Birdie, Las Vegas, Nv.
Louisville, US
★★★★★ 4
Good quality office chair with movable arms
Color: Dark, Color: Dark
This chair was relatively easy to put together. After unboxing and laying out all of the parts, my husband and I built it in 22 minutes. We noticed how the instructions have you put the tilt mechanism bracket on after putting the back and arms on. Another chair we built was the opposite, which made attaching it to the base actually easier. That way just made more sense. This way, you put the back and seat together using the arms, then you attach the tilt mechanism to the bottom of the seat, but the seat is at an angle when you do this. Then you lift the whole chair and place it down onto the legs. I'm glad there were two of us to do that part. We also noticed one of the holes for screwing in the arm bracket was not lined in metal like the rest of them were. It still worked, though. It does rock a bit back and forth. The height adjusting rod also locks the chair in place for when you don't want the chair to lean back. There is a knob underneath that allows you to loosen or tighten how much it moves when you lean back or rock. The material is faux leather. It looks like real leather and feels pretty good. This makes it easy to clean. The arms can be raised level with the back of the chair to make it easy to slide out of the side of the chair. Overall this chair has a pretty classic look to it and is comfortable to sit in. It even has some lumbar support. The way the back of the chair and the seat of the chair connect together leaves a little bit of a gap. Nothing major, but you could lose coins or keys through the gaps between the cushions. If you have a cat, this would be a great way for them to poke their paws through and say hello.
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Reviewed in the United States on May 20, 2026
H
Verified Purchase
Hemet Michael
Los Angeles, US
★★★★★ 5
Good value.
Color: Dark
Well built, looks good, and the material used are ok.
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Reviewed in the United States on June 4, 2026
I
Verified Purchase
ibuy2much
Grantham, US
★★★★★ 4
Nice office chair!
Color: Dark
This is a nice office chair. All of the features work as stated. I would say the seat is slightly more firm than I prefer, but comfort is subjective. The pleather is soft and I like that the arm rests fold out of the way.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026

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